Study On Comparison Of Geological Characteristics Of Iron Ore And Ore Prospecting Model Of The Western Part Of Western Kunlun

Based on detailed field geological survey and study of iron deposits,combined with the analysis of the previous research work in the area,and systematical indoor study,we comprehensively compared the west western section of Kunlun iron ore belt of regional geological background with typical deposit in this area of and deposit geological features.On the basis of this,the ore controlling geological conditions,ore prospecting signs and metallogenic regularities of iron deposits in the study area are summarized.In the present study,the western Kunlun iron ore belt was studid,following conclusions and understanding achieved:1.based on data analysis on previous basic work,the regional tectonic was further divided in the area,where the Tashikuergan were divided into three two secondary tectonic units such as tower County Waqia uplift belt,the Asif tower tower tulugou volcano sedimentary basin,the tower Mandy volcano sedimentary basin etc..Among them,large-scale magnetite deposit in the area located into the Asif tower tower tulugou volcano sedimentary basin,there is a close relationship between mineralization of the basin formation and evolution history of the region with iron deposit.From the bottom to the top and can be divided into about three lithologic iron bearing strata in the basin,marble and quartz schist segment,gypsum rock,magnetite quartz mica schist segment,respectively.The magnetite ore gypsum rock lithologic section is mainly magnetite ore body occurrence.Lithologic marble and quartz schist segment Shiling iron ore deposit.2.We first contrastive analysis the Laobing,Zankan,Qieliekeqi ziluoyi typical geological characteristics,ore deposit formation,ore type,ore structure,prospecting,open factors,basic characteristics of ore bearing strata and construction of deposit,to find out their similarities and differences.A similar geological background of these typical ore beds,the mineralization experienced original iron sedimentary and later metamorphism in two stages.In addition to Qieliekeqi iron deposit,the other three sources of ore-forming materials are directly related to the metamorphic strata in bulunkuole region,while the area of iron ore Qieliekeqi late Early Silurian-Triassic metallogenic,metallogenic material source and bulunkuole group have no direct relationship.3.the study on magnetite deposit geology,trace element geochemistry,geochemistry of rare earth elements,sulfur isotope and other aspects of comprehensive research,suggesting that the magnetite deposit type in this area belongs to marine volcano sedimentary iron ore deposits,and the original sedimentary is the main body of magnet ore,and the effects of regional metamorphism and the modification of magmatic hydrothermal fluid were limited.4.The establishment of metallogenic model of Laobing and,Zankan,Ziluoyi,Qieliekeqi typical deposits in the research area,that they have been about three mineralization stages: sedimentary mineralization stage,the regional metamorphism stage,the magmatic hydrothermal transformation stage.Among them,the sedimentary mineralization stage is the main stage of the formation of the iron ore,and the later is affected by the regional metamorphism and the transformation of magmatic hydrothermal fluid.5.Through the analysis of stratigraphic research,magmatite and its activities,structure,metamorphism,control and influence of lithofacies palaeogeography of the geological conditions of iron deposits in the study area,summarizes the temporal and spatial distribution of ore,ore sources,and mineral paragenesis combination factors of regional metallogenic regularity.And put forward in the research area of iron deposit mainly occurs in the Paleoproterozoic bulunkuole group formation and Lower Silurian Wenquangou group level,mainly controlled by stratigraphic horizon and lithofacies paleogeographic conditions.The main iron ore mineralization zone experienced a time evolution of Early Paleozoic sedimentary mineralization(sedimentary metallogenic stage)-late Caledonian Indosinian metamorphic mineralization(regional metamorphism stage)mineralization in Yanshan period magmatic hydrothermal(late hydrothermal transformation stage),the early Paleozoic mineralization of the earliest and most as an important area,mainly formed in the magnetite mineralization period,and the formation of metamorphic mineralization and magmatic hydrothermal activity later in the area of iron ore only played a limited role.In the space,the iron ore deposits in the area are mainly distributed in the edge of the sedimentary basin.Submarine volcanic activity is the main source of magnetite in the erea.6.Combining the results of previous studies and research work,a preliminary evaluation in the study area of iron ore prospecting potential,and points out the positive and negative magnetic in the study area shows the features of magnetic anomalies in complex and unusual combination of Fe,V,Ti,Co,Ni,Mn,Th,U,Mo and other high value added the bulunkuole group and abnormal group second lithologic metamorphic fine sandstone(powder)distribution area,the turn end area of the core of syncline and anticline,located in the north area of ziluoyi ziluoyi magnetite mine around the northern part of the region has good mineralization conditions.